They aren’t removing Flame Ward or Fire Aura, Spellblade will be fine. I don’t think any “serious” builds used Fire Shield.
If this one isn’t your favourite VK caster, you have no soul. Just tweak it a bit for Unbalanced Scale in Smite & the new +void skills staff & you’re done. And maybe swap Sigils of Hope (/Despair) for Volatile Reversal for both more dps & an automated oh #### button (the Faith node).